/*
 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OPENSSL_MODES_H
#define OPENSSL_MODES_H
#pragma once

#include <openssl/macros.h>
#ifndef OPENSSL_NO_DEPRECATED_3_0
#define HEADER_MODES_H
#endif

#include <openssl/types.h>
#include <stddef.h>

#ifdef __cplusplus
extern "C"
{
#endif
    typedef void (*block128_f)(const unsigned char in[16], unsigned char out[16], const void *key);

    typedef void (*cbc128_f)(const unsigned char *in, unsigned char *out, size_t len,
                             const void *key, unsigned char ivec[16], int enc);

    typedef void (*ecb128_f)(const unsigned char *in, unsigned char *out, size_t len,
                             const void *key, int enc);

    typedef void (*ctr128_f)(const unsigned char *in, unsigned char *out, size_t blocks,
                             const void *key, const unsigned char ivec[16]);

    typedef void (*ccm128_f)(const unsigned char *in, unsigned char *out, size_t blocks,
                             const void *key, const unsigned char ivec[16], unsigned char cmac[16]);

    void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                               const void *key, unsigned char ivec[16], block128_f block);
    void CRYPTO_cbc128_decrypt(const unsigned char *in, unsigned char *out, size_t len,
                               const void *key, unsigned char ivec[16], block128_f block);

    void CRYPTO_ctr128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                               const void *key, unsigned char ivec[16],
                               unsigned char ecount_buf[16], unsigned int *num, block128_f block);

    void CRYPTO_ctr128_encrypt_ctr32(const unsigned char *in, unsigned char *out, size_t len,
                                     const void *key, unsigned char ivec[16],
                                     unsigned char ecount_buf[16], unsigned int *num, ctr128_f ctr);

    void CRYPTO_ofb128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                               const void *key, unsigned char ivec[16], int *num, block128_f block);

    void CRYPTO_cfb128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                               const void *key, unsigned char ivec[16], int *num, int enc,
                               block128_f block);
    void CRYPTO_cfb128_8_encrypt(const unsigned char *in, unsigned char *out, size_t length,
                                 const void *key, unsigned char ivec[16], int *num, int enc,
                                 block128_f block);
    void CRYPTO_cfb128_1_encrypt(const unsigned char *in, unsigned char *out, size_t bits,
                                 const void *key, unsigned char ivec[16], int *num, int enc,
                                 block128_f block);

    size_t CRYPTO_cts128_encrypt_block(const unsigned char *in, unsigned char *out, size_t len,
                                       const void *key, unsigned char ivec[16], block128_f block);
    size_t CRYPTO_cts128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                                 const void *key, unsigned char ivec[16], cbc128_f cbc);
    size_t CRYPTO_cts128_decrypt_block(const unsigned char *in, unsigned char *out, size_t len,
                                       const void *key, unsigned char ivec[16], block128_f block);
    size_t CRYPTO_cts128_decrypt(const unsigned char *in, unsigned char *out, size_t len,
                                 const void *key, unsigned char ivec[16], cbc128_f cbc);

    size_t CRYPTO_nistcts128_encrypt_block(const unsigned char *in, unsigned char *out, size_t len,
                                           const void *key, unsigned char ivec[16],
                                           block128_f block);
    size_t CRYPTO_nistcts128_encrypt(const unsigned char *in, unsigned char *out, size_t len,
                                     const void *key, unsigned char ivec[16], cbc128_f cbc);
    size_t CRYPTO_nistcts128_decrypt_block(const unsigned char *in, unsigned char *out, size_t len,
                                           const void *key, unsigned char ivec[16],
                                           block128_f block);
    size_t CRYPTO_nistcts128_decrypt(const unsigned char *in, unsigned char *out, size_t len,
                                     const void *key, unsigned char ivec[16], cbc128_f cbc);

    typedef struct gcm128_context GCM128_CONTEXT;

    GCM128_CONTEXT *CRYPTO_gcm128_new(void *key, block128_f block);
    void CRYPTO_gcm128_init(GCM128_CONTEXT *ctx, void *key, block128_f block);
    void CRYPTO_gcm128_setiv(GCM128_CONTEXT *ctx, const unsigned char *iv, size_t len);
    int CRYPTO_gcm128_aad(GCM128_CONTEXT *ctx, const unsigned char *aad, size_t len);
    int CRYPTO_gcm128_encrypt(GCM128_CONTEXT *ctx, const unsigned char *in, unsigned char *out,
                              size_t len);
    int CRYPTO_gcm128_decrypt(GCM128_CONTEXT *ctx, const unsigned char *in, unsigned char *out,
                              size_t len);
    int CRYPTO_gcm128_encrypt_ctr32(GCM128_CONTEXT *ctx, const unsigned char *in,
                                    unsigned char *out, size_t len, ctr128_f stream);
    int CRYPTO_gcm128_decrypt_ctr32(GCM128_CONTEXT *ctx, const unsigned char *in,
                                    unsigned char *out, size_t len, ctr128_f stream);
    int CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx, const unsigned char *tag, size_t len);
    void CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len);
    void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx);

    typedef struct ccm128_context CCM128_CONTEXT;

    void CRYPTO_ccm128_init(CCM128_CONTEXT *ctx, unsigned int M, unsigned int L, void *key,
                            block128_f block);
    int CRYPTO_ccm128_setiv(CCM128_CONTEXT *ctx, const unsigned char *nonce, size_t nlen,
                            size_t mlen);
    void CRYPTO_ccm128_aad(CCM128_CONTEXT *ctx, const unsigned char *aad, size_t alen);
    int CRYPTO_ccm128_encrypt(CCM128_CONTEXT *ctx, const unsigned char *inp, unsigned char *out,
                              size_t len);
    int CRYPTO_ccm128_decrypt(CCM128_CONTEXT *ctx, const unsigned char *inp, unsigned char *out,
                              size_t len);
    int CRYPTO_ccm128_encrypt_ccm64(CCM128_CONTEXT *ctx, const unsigned char *inp,
                                    unsigned char *out, size_t len, ccm128_f stream);
    int CRYPTO_ccm128_decrypt_ccm64(CCM128_CONTEXT *ctx, const unsigned char *inp,
                                    unsigned char *out, size_t len, ccm128_f stream);
    size_t CRYPTO_ccm128_tag(CCM128_CONTEXT *ctx, unsigned char *tag, size_t len);

    typedef struct xts128_context XTS128_CONTEXT;

    int CRYPTO_xts128_encrypt(const XTS128_CONTEXT *ctx, const unsigned char iv[16],
                              const unsigned char *inp, unsigned char *out, size_t len, int enc);

    size_t CRYPTO_128_wrap(void *key, const unsigned char *iv, unsigned char *out,
                           const unsigned char *in, size_t inlen, block128_f block);

    size_t CRYPTO_128_unwrap(void *key, const unsigned char *iv, unsigned char *out,
                             const unsigned char *in, size_t inlen, block128_f block);
    size_t CRYPTO_128_wrap_pad(void *key, const unsigned char *icv, unsigned char *out,
                               const unsigned char *in, size_t inlen, block128_f block);
    size_t CRYPTO_128_unwrap_pad(void *key, const unsigned char *icv, unsigned char *out,
                                 const unsigned char *in, size_t inlen, block128_f block);

#ifndef OPENSSL_NO_OCB
    typedef struct ocb128_context OCB128_CONTEXT;

    typedef void (*ocb128_f)(const unsigned char *in, unsigned char *out, size_t blocks,
                             const void *key, size_t start_block_num, unsigned char offset_i[16],
                             const unsigned char L_[][16], unsigned char checksum[16]);

    OCB128_CONTEXT *CRYPTO_ocb128_new(void *keyenc, void *keydec, block128_f encrypt,
                                      block128_f decrypt, ocb128_f stream);
    int CRYPTO_ocb128_init(OCB128_CONTEXT *ctx, void *keyenc, void *keydec, block128_f encrypt,
                           block128_f decrypt, ocb128_f stream);
    int CRYPTO_ocb128_copy_ctx(OCB128_CONTEXT *dest, OCB128_CONTEXT *src, void *keyenc,
                               void *keydec);
    int CRYPTO_ocb128_setiv(OCB128_CONTEXT *ctx, const unsigned char *iv, size_t len,
                            size_t taglen);
    int CRYPTO_ocb128_aad(OCB128_CONTEXT *ctx, const unsigned char *aad, size_t len);
    int CRYPTO_ocb128_encrypt(OCB128_CONTEXT *ctx, const unsigned char *in, unsigned char *out,
                              size_t len);
    int CRYPTO_ocb128_decrypt(OCB128_CONTEXT *ctx, const unsigned char *in, unsigned char *out,
                              size_t len);
    int CRYPTO_ocb128_finish(OCB128_CONTEXT *ctx, const unsigned char *tag, size_t len);
    int CRYPTO_ocb128_tag(OCB128_CONTEXT *ctx, unsigned char *tag, size_t len);
    void CRYPTO_ocb128_cleanup(OCB128_CONTEXT *ctx);
#endif /* OPENSSL_NO_OCB */

#ifdef __cplusplus
}
#endif

#endif
